Home / 401,788.06-554,430.83-238,416.36

Finding the Fourth Proportional to 401,788.06, 554,430.83 and 238,416.36

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Solution

The fourth proportional to 401,788.06, 554,430.83 and 238,416.36 is: 328,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,788.06 : 554,430.83 = 238,416.36 : x
  2. Step 2: Convert to fraction form
    401,788.06/554,430.83 = 238,416.36/x
  3. Step 3: Cross multiply
    401,788.06x = 554,430.83 × 238,416.36
  4. Step 4: Simplify right side
    401,788.06x = 132,185,380,207.86
  5. Step 5: Solve for x
    x = 132,185,380,207.86/401,788.06
  6. Step 6: Final answer
    x = 328,992.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.